Published date: 4 August 2023
Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.
Contract summary
Industry
Construction work - 45000000
Location of contract
United Kingdom
Value of contract
£500,000 to £550,000
Procurement reference
8AE873D3-AE91-415F-86F2-BDBBFEDB6F3A
Published date
4 August 2023
Closing date
25 August 2023
Closing time
1pm
Contract start date
15 September 2023
Contract end date
31 March 2024
Contract type
Works
Procedure type
Restricted procedure (above threshold)
A two-stage procedure, where the first stage is used to select suppliers, who are then invited to bid in the second stage.
This procedure can be used for procurements above the relevant contract value threshold.
Contract is suitable for SMEs?
Yes
Contract is suitable for VCSEs?
No
Description
This project seeks to replace the pumps and controls that feed Kew's central irrigation loop, with a properly designed, reliable system that provides long term solution to Kew's irrigation needs. The designers will also look at how the fire hydrants from irrigation system can be compliant fire-fighting equipment. The project will take six months to deliver and is estimated to cost £560,000.
The project scope excludes any upgrades to electrical incomers, additional landscaping and many pre-existing maintenance issues not related to the pump replacement.
Kew's central irrigation system was installed in 2005. It consists of a 280k litre storage tank supplied by Thames Water. The tank feeds a set of six pumps, which push water out into the irrigation loop supplies the whole garden. The pumps also feed the fire hydrant loop, which supplies all firefighting hydrants within the Kew grounds.
Ensure all elements of the design consider Kew's long term irrigation strategy and incorporate sustainable measures wherever possible.
Since installation, the system has suffered numerous pump failures and in 2019 the whole system was replaced under a design and build contract with Irritech Limited. However, this was unsuccessfully at solving the issue of persistent pump failure and now only two of the 2019 pumps are still in working order. The defective system puts the health of the plant collection at risk and is a major cause of concern for Kew. Further, initial calculations suggest the current system does not provide enough pressure to supply both the irrigation and hydrant system together, adding risk to Kew's emergency response plans. A temporary system, comprising submersible pumps is currently being installed and providing adequate cover, and a long term back up system. However, this does not represent a sustainable solution and urgent action is required to design and install a system for the long term.
Key stakeholders will be involved in developing the design. Design engagement has included Operational Estates and Horticulture.
This opportunity has been distributed on adamprocure.co.uk
About the buyer
Contact name
David Prior
Address
Kew Green
225 High Road
London
TW9 3AE
United Kingdom
Website
Share this notice
Closing: 25 August 2023, 1pm
All content is available under the
